We had a similar problem with stuff getting through the screens on a 10 Bohemian system. The solution was to install a filter (looked a lot like a hop back) in-line between the MT and BK, it was hard piped w/ TC fittings and sat right under the sink. The thing was about 4' long and a total pain to clean out but worked like a charm. It usually collected about 10-15 (dry lbs) of grain per batch. We still had to start RO slowly to avoid filling it up, but after it was going you could incrementally speed it up to a reasonable rate.
-forgot to mention we had a Tee installed at the MT out so we could bypass the filter during the vorlauf.
Curious to see how others have delt with this too... It's quite literally the only thing i did not like about that system.
Last edited by Jephro; 05-06-2009 at 07:15 PM.
Jeff Byrne (aka jephro)
11 year pro craft brewer available for hire...
Puyallup, Wa - for now